strontium(II) nitrate tetrahydrate 以
not given 为溶剂,
生成 strontium nitrate
参考文献:
名称:
Berkeley; Appleby, M. P., Proceedings of the Royal Society of London, Series A: Mathematical, Physical and Engineering Sciences, 1911, vol. 85, p. 489 - 489
Complex metal oxide catalyst with high (METH) acrylic acid selectivity
申请人:Shin Jong Hyun
公开号:US20070038004A1
公开(公告)日:2007-02-15
Disclosed are a Mo—Bi—Nb—Te based composite metal oxide; and a process for producing (meth)acrylic acid from at least one reaction material selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, wherein the Mo—Bi—Nb—Te based composite metal oxide is used as a catalyst. Also, disclosed is a process for producing (meth)acrylic acid comprising a first step of producing (meth)acrolein as a main product from at least one reaction material selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, and a second step of producing (meth)acrylic acid from the (meth)acrolein, wherein yield of (meth)acrylic acid in the product of the first step is 20 mole % or higher.
Preparation of Sr<sub>2</sub>CeO<sub>4</sub> Blue Phosphor Particles and Rare Earth (Eu, Ho, Tm, or Er)-Doped Sr<sub>2</sub>CeO<sub>4</sub> Phosphor Particles, Using an Emulsion Liquid Membrane System
作者:Takayuki Hirai、Yusuke Kawamura
DOI:10.1021/jp040220p
日期:2004.8.1
Sr2CeO4 blue phosphor particles were prepared with an emulsionliquidmembrane (ELM, water-in-oil-in-water (W/O/W) emulsion) system, which could be utilized as a microreactor for the preparation of size- and morphology-controlled fineparticles. In the ELM system, Sr2+ and Ce3+ ions were extracted from the external water phase by extractant (cation carrier, bis(2-ethylhexyl)phosphoric acid) and were
Optical absorption intensity analysis using Judd-Ofelt theory and photoluminescence investigation of orange-red Sr 2 SiO 4 : Sm 3+ nanopigments
作者:C. Manjunath、M.S. Rudresha、B.M. Walsh、R. Hari Krishna、B.S. Panigrahi、B.M. Nagabhushana
DOI:10.1016/j.dyepig.2017.08.036
日期:2018.1
parameters that are very significant for the evaluation of laser and luminescent materials are calculated based on the quantitative absorptionspectra. This approach for calculating JO parameters are particularly important since the proportional relation between absorption and emission intensities are considered. JO intensity parameters (Ω2, Ω4 and Ω6) were calculated for the sample Sr2-xSmxSiO4 (x = 0
通过低温溶液燃烧法制备了用于白色发光二极管(w-LED)的橙红色发光Sr 2 SiO 4:xSm 3+(x = 0.01-0.09)纳米颜料。就活化剂浓度(Sm 3+)进行了结构和光致发光性质的系统研究。基于定量吸收光谱,计算了对激光和发光材料评估非常重要的Judd-Ofelt(JO)强度参数。由于考虑了吸收强度和发射强度之间的比例关系,因此这种计算JO参数的方法尤为重要。JO强度参数(Ω 2,Ω 4和Ω对于观察到的发射最大的样品Sr 2-x Sm x SiO 4(x = 0.03)计算出6)。这些参数遵循趋势Ω 2 >Ω 6 >Ω 4。可见发射光谱和JO参数表明,稀土离子周围的结构环境本质上是中心对称的。使用非辐射能量转移机制详细研究了Sm 3+离子掺杂浓度对发光行为的影响。分支比和发射横截面是激光器设计中的关键参数,在我们的案例中为67%和3.82×10 -22 cm 2分别用于过渡4
MLi<sub>2</sub>Ti<sub>6</sub>O<sub>14</sub> (M = Sr, Ba, and Pb): new cathode materials for magnesium–lithium hybrid batteries
MLi2Ti6O14 (M = Sr, Ba, and Pb) were synthesized, for the first time, by a facile sol–gel method, followed by calcination and showed good electrochemical performance as cathodes for magnesium–lithium hybrid batteries.